I think hatchet fish may get too big and they are souly surface dwellers which would mean there would be nothig happening in the lower levels of the tank how about some smaller shoalers?
I think hatchet fish may get too big and they are souly surface dwellers which would mean there would be nothig happening in the lower levels of the tank how about some smaller shoalers?
They get to 2" max, and are great jumpers too.
They stay at the surface and barley go below 5" and that is to catch food (my tank is 18" deep) so in a nano they may not go that far down as they would nearly be on the substrate lol.